Online Store Points System?

[IAWBody]

This has probably already been done, but I've searched through all the forums, and I can't find anything on this.

I am wanting a points system where users gain points for their posts, thread starts, referrals, etc. And I want to be able to control how many points they get for each.

I want the users to gain points to be able to purchase forum products, like Club Stickers, T-Shirts, Hoodies, Hats, and maybe every once in a while a really nice product related to their car. (it's a car forum)

I want them to be able to do this on their own, like through a store system.

Is there anything like this? Or can someone make something like this?

Thanks!